File menu

[jancborchardt]

The »exit« entry in the file menu seems redundant, as you can just close the window.

As for the rest, the functions should be directly in the blue bar, as monochrome white icons.
Clicking »Open« should reveal the existing documents as dropdown, not as modal.

Regarding »Save« and »Save as …« – first off, stuff should be autosaved always. User input is the most important thing in an app, you can’t just not save it (see Dropbox, Etherpad and I think new Mac apps also do it).

The name of the presentation should be displayed in the blue top bar, also editable. That way you quickly know what the document is that you edit.